Test Research and Finite Element Analysis on Extension Performance of Civil Aircraft Flaps Subjected to Extreme Temperature

2021 ◽  
pp. 1-12
Author(s):  
Jingtao Wu ◽  
Sibo Zhou ◽  
Wenliang Deng ◽  
Yunwen Feng
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Extreme Temperature ◽  
Element Analysis ◽  
Civil Aircraft

scholarly journals Electromagnetic launch systems for civil aircraft assisted take-off

2015 ◽  
Vol 64 (4) ◽  
pp. 535-546 ◽  
Author(s):  
Luca Bertola ◽  
Tom Cox ◽  
Patrick Wheeler ◽  
Seamus Garvey ◽  
Herve Morvan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Linear Motor ◽  
Element Analysis ◽  
Engine Thrust ◽  
Electromagnetic Launch ◽  
Civil Aircraft ◽  
Electromagnetic Launcher ◽  
Initial Acceleration ◽  
Launch Systems

Abstract This paper considers the feasibility of different technologies for an electromagnetic launcher to assist civil aircraft take-off. This method is investigated to reduce the power required from the engines during initial acceleration. Assisted launch has the potential of reducing the required runway length, reducing noise near airports and improving overall aircraft efficiency through reducing engine thrust requirements. The research compares two possible linear motor topologies which may be efficaciously used for this application. The comparison is made on results from both analytical and finite element analysis (FEA).

Research of Limitation and Cooperation Relationships of Pulleys and Bushing Based on Temperature Field

2012 ◽  
Vol 510 ◽  
pp. 362-367
Author(s):  
Hui Ping Wang ◽  
Zhong Qi Wang ◽  
Yong Gang Kang ◽  
Zhi Ming Hu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Temperature Field ◽  
Numerical Method ◽  
Linear Expansion ◽  
Extreme Temperature ◽  
Linear Expansion Coefficient ◽  
Analysis Software ◽  
Element Analysis ◽  
Working Temperature

Pulleys and bushing have different linear expansion coefficient, relatively sliding may occur between them when hated, therefore, we have to ensure that there's enough interference volume within pulleys and bushing. First of all, using simplify numerical method calculated theoretical extreme temperature, then taking simulate analysis with ABAQUS finite element analysis software, through the change of CPRESS and COPEN in different temperature field, extract the extremely working temperature of aluminum pulleys. and then determined the limitation and cooperation relationships by comparison.

Finite element analysis on dental implant[ndash ]supported prostheses without passive fit

2002 ◽  
Vol 11 (1) ◽  
pp. 30-40 ◽  
Author(s):  
Chatchai Kunavisarut ◽  
Lisa A. Lang ◽  
Brian R. Stoner ◽  
David A. Felton
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dental Implant ◽  
Element Analysis ◽  
Passive Fit

Performance enhancement of normal contact ratio gearing system through correction factor

2019 ◽  
Vol 13 (3) ◽  
pp. 5242-5258
Author(s):  
R. Ravivarman ◽  
K. Palaniradja ◽  
R. Prabhu Sekar
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Correction Factor ◽  
Bending Strength ◽  
Performance Enhancement ◽  
Transmission Ratio ◽  
Contact Ratio ◽  
Element Analysis ◽  
Normal Contact ◽  
Root Region

As lined, higher transmission ratio drives system will have uneven stresses in the root region of the pinion and wheel. To enrich this agility of uneven stresses in normal-contact ratio (NCR) gearing system, an enhanced system is desirable to be industrialized. To attain this objective, it is proposed to put on the idea of modifying the correction factor in such a manner that the bending strength of the gearing system is improved. In this work, the correction factor is modified in such a way that the stress in the root region is equalized between the pinion and wheel. This equalization of stresses is carried out by providing a correction factor in three circumstances: in pinion; wheel and both the pinion and the wheel. Henceforth performances of this S+, S0 and S- drives are evaluated in finite element analysis (FEA) and compared for balanced root stresses in parallel shaft spur gearing systems. It is seen that the outcomes gained from the modified drive have enhanced performance than the standard drive.

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